| 其他書名 | A Cooperative Project Between the Residents of Lancaster County, the Alliance for the Chesapeake Bay, and the U.S. Geological Survey |
| 出版 | U.S. Department of the Interior, U.S. Geological Survey, 1998 |
| URL | http://books.google.com.hk/books?id=nc2d97wklIsC&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |